#include<bits/stdc++.h>
using namespace std;
#define M 200007
int n,a[M],maxn=0;
int main()
{
    memset(a,0,sizeof(a));
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    int x;
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>x;
        a[x]++;
        if(a[x]>maxn)
        {
            maxn=a[x];
        }
    }
    cout<<maxn;
    return 0;
}
